The film is a metaphor for the Cold War. It depicts two neighbouring nations: peace loving Fortuna and the not so peaceful land of the Steel City.
Martin Růžek
as Dr. Sarrasin
Josef Vinklář
as Profesor chemie Eric Janus
Petr Kostka
as Van Hulshof
Jan Potměšil
as Viktor
Jaromír Hanzlík
as Ingenieur Marcel Zodiak / Moltke
Taťjana Medvecká
as Alice
Josef Somr
as Vent
Petr Čepek
as Filbank
Vilém Besser
as Arminius
Bořivoj Navrátil
as Siniger
Josef Bláha
as Captain
Čestmír Řanda
as ředitel internátu